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< h1 > Documentation< / h1 >
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< h3 > Kafka 4.0 Documentation< / h3 >
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Prior releases: < a href = "/07/documentation.html" > 0.7.x< / a > ,
< a href = "/08/documentation.html" > 0.8.0< / a > ,
< a href = "/081/documentation.html" > 0.8.1.X< / a > ,
< a href = "/082/documentation.html" > 0.8.2.X< / a > ,
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< a href = "/0101/documentation.html" > 0.10.1.X< / a > ,
< a href = "/0102/documentation.html" > 0.10.2.X< / a > ,
< a href = "/0110/documentation.html" > 0.11.0.X< / a > ,
< a href = "/10/documentation.html" > 1.0.X< / a > ,
< a href = "/11/documentation.html" > 1.1.X< / a > ,
< a href = "/20/documentation.html" > 2.0.X< / a > ,
< a href = "/21/documentation.html" > 2.1.X< / a > ,
< a href = "/22/documentation.html" > 2.2.X< / a > ,
< a href = "/23/documentation.html" > 2.3.X< / a > ,
< a href = "/24/documentation.html" > 2.4.X< / a > ,
< a href = "/25/documentation.html" > 2.5.X< / a > ,
< a href = "/26/documentation.html" > 2.6.X< / a > ,
< a href = "/27/documentation.html" > 2.7.X< / a > ,
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< a href = "/28/documentation.html" > 2.8.X< / a > ,
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< a href = "/30/documentation.html" > 3.0.X< / a > ,
< a href = "/31/documentation.html" > 3.1.X< / a > ,
< a href = "/32/documentation.html" > 3.2.X< / a > ,
< a href = "/33/documentation.html" > 3.3.X< / a > ,
< a href = "/34/documentation.html" > 3.4.X< / a > ,
< a href = "/35/documentation.html" > 3.5.X< / a > ,
< a href = "/36/documentation.html" > 3.6.X< / a > ,
< a href = "/37/documentation.html" > 3.7.X< / a > ,
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< a href = "/38/documentation.html" > 3.8.X< / a > ,
< a href = "/39/documentation.html" > 3.9.X< / a > .
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< h2 class = "anchor-heading" > < a id = "gettingStarted" class = "anchor-link" > < / a > < a href = "#gettingStarted" > 1. Getting Started< / a > < / h2 >
< h3 class = "anchor-heading" > < a id = "introduction" class = "anchor-link" > < / a > < a href = "#introduction" > 1.1 Introduction< / a > < / h3 >
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< h3 class = "anchor-heading" > < a id = "uses" class = "anchor-link" > < / a > < a href = "#uses" > 1.2 Use Cases< / a > < / h3 >
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< h3 class = "anchor-heading" > < a id = "quickstart" class = "anchor-link" > < / a > < a href = "#quickstart" > 1.3 Quick Start< / a > < / h3 >
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< h3 class = "anchor-heading" > < a id = "ecosystem" class = "anchor-link" > < / a > < a href = "#ecosystem" > 1.4 Ecosystem< / a > < / h3 >
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< h3 class = "anchor-heading" > < a id = "upgrade" class = "anchor-link" > < / a > < a href = "#upgrade" > 1.5 Upgrading From Previous Versions< / a > < / h3 >
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< h3 class = "anchor-heading" > < a id = "zk2kraft-summary" class = "anchor-link" > < / a > < a href = "#zk2kraft-summary" > 1.6 KRaft vs ZooKeeper< / a > < / h3 >
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< h3 class = "anchor-heading" > < a id = "compatibility-summary" class = "anchor-link" > < / a > < a href = "#compatibility-summary" > 1.7 Compatibility< / a > < / h3 >
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< h3 class = "anchor-heading" > < a id = "docker" class = "anchor-link" > < / a > < a href = "#docker" > 1.8 Docker< / a > < / h3 >
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< h2 class = "anchor-heading" > < a id = "api" class = "anchor-link" > < / a > < a href = "#api" > 2. APIs< / a > < / h2 >
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< h2 class = "anchor-heading" > < a id = "configuration" class = "anchor-link" > < / a > < a href = "#configuration" > 3. Configuration< / a > < / h2 >
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< h2 class = "anchor-heading" > < a id = "design" class = "anchor-link" > < / a > < a href = "#design" > 4. Design< / a > < / h2 >
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< h2 class = "anchor-heading" > < a id = "implementation" class = "anchor-link" > < / a > < a href = "#implementation" > 5. Implementation< / a > < / h2 >
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< h2 class = "anchor-heading" > < a id = "operations" class = "anchor-link" > < / a > < a href = "#operations" > 6. Operations< / a > < / h2 >
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< h2 class = "anchor-heading" > < a id = "security" class = "anchor-link" > < / a > < a href = "#security" > 7. Security< / a > < / h2 >
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< h2 class = "anchor-heading" > < a id = "connect" class = "anchor-link" > < / a > < a href = "#connect" > 8. Kafka Connect< / a > < / h2 >
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< h2 > < a id = "streams" href = "#streams" > 9. Kafka Streams< / a > < / h2 >
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< p >
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Kafka Streams is a client library for processing and analyzing data stored in Kafka. It builds upon important stream processing concepts such as properly distinguishing between event time and processing time, windowing support, exactly-once processing semantics and simple yet efficient management of application state.
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< / p >
< p >
Kafka Streams has a < b > low barrier to entry< / b > : You can quickly write and run a small-scale proof-of-concept on a single machine; and you only need to run additional instances of your application on multiple machines to scale up to high-volume production workloads. Kafka Streams transparently handles the load balancing of multiple instances of the same application by leveraging Kafka's parallelism model.
< / p >
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< p > To learn more about Kafka Streams, visit the < a href = "/documentation/streams" > Kafka Streams page< / a > .< / p >
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